As-Salaam alaikum,
Allah's Messenger, Sallallahu alaihi Wasallam, said : "I smile because of 2 men from my Nation, who shall kneel in the presence of the Lord of Power. Once of them says : 'O my Lord, grant me retaliation for the wrong which my brother did to me.'
And Allah says :'Give your brother in which he was wronged.'
'O Lord, he says,' none of my righteous works remain. ' Then Allah Ta'ala (the Exalted) says to the man who made the demand :' What shall you do with your brother, seeing that none of his righteousness works remain? ' And he replies :
' O my Lord, let him bear some of my burdens in my stead. '
And Allah's Messenger wept, as he said : 'Truly, that shall be a fearsome Day, a Day when men have need of others to bear their burdens.' Then he said : 'Allah shall say to one who made the request :' Lift up your head, and look to the Gardens. ' This he does, and he says :' O my Lord, I see high cities of silver and golden palaces wreathed about with pearls. For which Prophet shall they be? ' And He said :They belong to whosoever pays me their price.!
' O my Lord, he says, 'And who possesses such a price?' 'You possess it, He replies.' 'And what might it be?' he asks, and He says :'Your forgiveness of your brother.'
'O my Lord, he says,' I have forgiven him. '
Then Allah the Exalted says :' Take your brother's hand and bring him into Heaven.' Then Allah' s Messenger recited part of first ayat in Surat Anfal of the Holy Qur'an :--"Fear Allah, and make reconciliation among yourselves" (8:1).
(al-Hakim al-Nisaburi: al-Mustadrak ala al-Sahihayn) 1v, 576.